127. A dummy activity

A.Is artificially introduced

B.Is represented by a dotted line

C.Does not require any time

D.All of the above

128. The difference between the time available to do the job and the time required to do the job, is known as

A.Event

B.Float

C.Duration

D.Constraint

129. The probability distribution of activity times in PERT follows following distribution

A.Normal

B.Binomial

C.Beta

D.Exponential

130. The probability distribution of project completion in PERT follows following distribution

A.Normal

B.Binominal

C.Beta

D.Exponential

131. If TL is the largest allowable event occurrence time, total activity slack (s) is equal to

A.Latest start time ? earliest start time

B.Latest finish time ? earliest finish time (EFT)

C.TL?EFT

D.All of the above

132. The critical activity has

A.Maximum float

B.Minimum float

C.Zero float,

D.Average float

133. The time by which the activity completion-time can be delayed without affeFting the start of succeeding activities, is lown as

A.Duration

B.Total float

C.Free float

D.Interfering float

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